// Copyright 2022 Matrix Origin
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package export

import (
	"github.com/matrixorigin/matrixone/pkg/util/export/table"
)

// ETLWriter handle serialize logic, like csv file and tae file.
type ETLWriter interface {
	// WriteRow write table.Row as one line info file.
	WriteRow(row *table.Row) error
	// WriteStrings write record as one line into file.
	WriteStrings(record []string) error
	// FlushAndClose flush its buffer and close the writer.
	FlushAndClose() (int, error)
}

type ETLReader interface {
	// ReadRow read one line as table.Row
	ReadRow(row *table.Row) error
	// ReadLine read raw data from file.
	ReadLine() ([]string, error)
	// Close files and release all content.
	Close()
}
